diff --git a/nonebot_plugin_tetris_stats/game_data_processor/io_data_processor/processor.py b/nonebot_plugin_tetris_stats/game_data_processor/io_data_processor/processor.py
index e322d03..0b1eb73 100644
--- a/nonebot_plugin_tetris_stats/game_data_processor/io_data_processor/processor.py
+++ b/nonebot_plugin_tetris_stats/game_data_processor/io_data_processor/processor.py
@@ -312,7 +312,10 @@ class Processor(ProcessorMeta):
                     user=TETRIOInfo.User(
                         avatar=f'https://tetr.io/user-content/avatars/{user_info.data.user.id}.jpg?rv={user_info.data.user.avatar_revision}'
                         if user_info.data.user.avatar_revision is not None
-                        else f'{{"type":"identicon","hash":"{md5(user_info.data.user.id.encode()).hexdigest()}"}}',  # noqa: S324
+                        else TETRIOInfo.User.Avatar(
+                            type='identicon',
+                            hash=md5(user_info.data.user.id.encode()).hexdigest(),  # noqa: S324
+                        ),
                         name=user_name,
                         bio=user_info.data.user.bio,
                     ),
diff --git a/nonebot_plugin_tetris_stats/utils/render.py b/nonebot_plugin_tetris_stats/utils/render.py
index ec05e52..1447a3c 100644
--- a/nonebot_plugin_tetris_stats/utils/render.py
+++ b/nonebot_plugin_tetris_stats/utils/render.py
@@ -35,7 +35,11 @@ class Bind(BaseModel):
 
 class TETRIOInfo(BaseModel):
     class User(BaseModel):
-        avatar: str
+        class Avatar(BaseModel):
+            type: Literal['identicon']
+            hash: str
+
+        avatar: str | Avatar
         name: str
         bio: str | None